Question 968925
{{{y=B+Asin(wx+phi)}}}
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{{{B=(100+60)/2=160/2=80}}}
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{{{P=0.02}}}
{{{0.02=(2pi)/w}}}
{{{w=(2pi)/0.02}}}
{{{w=100pi}}}
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{{{A=(100-60)/2=20}}}
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Sine usually starts at 0.
Starting at minimum is a phase shift of -1/4 period.
{{{phi=-(2pi)/4=-pi/2}}}
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{{{y=80+20sin(100*pi*x-pi/2)}}}
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*[illustration desx13.JPG].